Smoothed Rsi code not working in PI but works fine in EXCEL

Algos, strategies, code
1

This code is for Smoothed Rsi Inverse Fisher Transform. by Sylvain Vervoort

BUY CODE :

SET SRSA = ( RSI ( CLOSE,4 )-50) * 0.1
SET SRSB = EXP( 2 * SRSA ) - 1
SET SRSC = EXP( 2 * SRSA ) + 1
SET SRSD = ( SRSB/SRSC ) * 50
SET SRSE = SRSD + 50
SET SRS = WMA( SRSE , 9 )

CROSSOVER(SRS,90)

SELL CODE :

SET SRSA = ( RSI ( CLOSE,4 )-50) * 0.1
SET SRSB = EXP( 2 * SRSA ) - 1
SET SRSC = EXP( 2 * SRSA ) + 1
SET SRSD = ( SRSB/SRSC ) * 50
SET SRSE = SRSD + 50
SET SRS = WMA( SRSE , 9 )

CROSSOVER(10,SRS)

if i export OHLC data from PI to Excel and write the code in excel this program is

working and generating buy/sell signals , but in PI it says “scripts generated no trades” even if

i select 30 days of one minute candles.

I think the exp() function has not been implemented in PI yet.

2

As per the above condition you can directly use (2*SRSA)-2 and can define without EXP() … it works

3

not working code:
SET SRSB = EXP( 2 * SRSA ) - 1
SET SRSC = EXP( 2 * SRSA ) + 1

working code :
SET SRSB = EXP( srsa + SRSA ) - 1
SET SRSC = EXP( srsa + SRSA ) + 1